A new trilobite assemblage from the Middle Cambrian of the Pardailhan Nappe (Montagne Noire, France)

A new trilobite assemblage, belonging to the Middle Cambrian, has been foun d in the Pardailhan nappe (southern Montagne Noire. France). For the first time the lowermost part of the middle Middle Cambrian is recognized in the Montagne Noire. Trilobite-bearing shales from the lowermost part of the Cou louma Formation holostratotype have yielded Condylopyge sp.. Dawsonia bohem ica, Corynexochus delagei, Asturiaspis inopinatus. Skreiaspis miqueli nov. sp., Badulesia tenera, Badulesia juliverti and Conocoryphe (Conocoryphe) sp . This assemblage allows us to propose a correlation of these levels with t he late Leonian/early Caesaraugustian interval of the Iberian Peninsula and Sardinia, and the Zones of Kymataspis arenosa and Badulesia tenera of the Moroccan Anti-Atlas. Finally, the first occurrence of D. bohemica outside B ohemia permits a correlation of the D. bohemica Horizon (Zone of Paradoxide s pusillus) within the B. tenera Zone (first biozone of the Caesaraugustian on the Iberian Peninsula).